Description of problem:
blivet regresion found the error, please have a look.

Version-Release number of selected component (if applicable):
python3-blivet-1:3.6.0-4.el9.noarch
RHEL-9.2.0-20221224.0 BaseOS x86_64

How reproducible:

Steps to Reproduce:
1. python3 tests/run_tests.py
2.
3.

Actual results:

Expected results:

Additional info:

======================================================================
FAIL: test_new_stratis (unit_tests.devices_test.stratis_test.BlivetNewStratisDeviceTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/root/rpmbuild/BUILD/blivet-3.6.0/tests/unit_tests/devices_test/stratis_test.py", line 39, in test_new_stratis
self.assertAlmostEqual(pool.free_space, Size("1.5 GiB"), delta=Size("10 MiB"))
AssertionError: Size (1.48895263671875 GiB) != Size (1.5 GiB) within Size (10 MiB) delta (Size (11.3125 MiB) difference)

https://beaker.engineering.redhat.com/recipes/13152192#task154335334